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发明名称
Preparation of photographic compositions and elements
摘要
申请公布号
US2414208(A)
申请公布日期
1947.01.14
申请号
US19450596601
申请日期
1945.05.29
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
MURRAY OTIS WILLARD
分类号
G03C1/053
主分类号
G03C1/053
代理机构
代理人
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